Rotary engine.



E. E. ALLEN..

ROTARY ENGINE.

APPLlCATION FILED NOV. 1B. 1916.

Patented July 24, 1917.

4 SHEETS-SHEET I- B g INVENTOR E. E. ALLEN.

ROTARY ENGINE.

APPLICATION FILED NOV. I5. 1916.

5 1,234,599. Patented July 24,1917;

4 SHEETS-SHEET 2- WITNESSES."

E. E. ALLEN ROTARY ENGINE. APPLICATION FILED NOV. lb. 1916.

Patented July 24, 1917.

' 4 SHEETS-SHEET 3.

. PIA/912 J 13 1 WITNESSES: $51, NVfiNTQR.

E. E. A'LLEN. nomv ENGINE; APPLICATION FILED NOV. 18319]...

' 1,234,599. r v. RatontedJuly24, 1917.

4 satin-rantin- I IfiVENTOR.

ELMER E. ALLEN, 0 IE'LUSHING, NEW YORK.

ROTARY ENGINE.

To all to 7mm z't may concern Be it known that I, ELM'ER E. ALLEN, a citizen of the United States, and a sident of Flushing, in the county of Queens and State of New York, have invented certain new 'and useful Improvements in. Rotary Engines, of which the following is a specifi cation.

My improvements relate to rotary engines of the segmental piston and revoluble casing type, and are designed to simplify their construction. and render them effective and economical in operation. The invention consists in the specific construction and arrangement of parts hereinafter described and claimed, distinctive features being the means by which a duplex impetus imparted to the rotor during each rotation, and by which the motive power is supplied and the exhaust effected, all as hereinafter fully set forth.

In the accompanying drawings,

Figure 1, is a plan of the engine;

Fig. 2, is a plan of the rotor partly broken away and shown in section on plane of line 2-2, Fig. 10;

Fig. 3, is a section taken upon plane 'of line 3-3, Fig. 4:;

.Fig. 4, is an elevation of the annular cap plate for the feed channel;

Fig. 5, is a half section and half elevation of the duplex abutment member;

Fig. 6, is a sectional elevation taken upon plane of line 6-6, Fig. 5;

Fig. 7 is a detail showing the interlocking of the abutment packing at the pcripheral edge of said abutment;

Fig. 8, is a sectional elevation taken upon plane of line S 8, Fig. 10;

Fig. 9, is a sectional elevation taken upon plane of line 9-9, Fig. 10;

Fig. 10, is a sectional elevation taken upon plane of line 10--10, Fig. 11;

Fig. 11, is a front view of the motor;-

Fig. 12, is a section taken upon plane of line 12 m, Fig. 10; I

Fig. 13, is a rear elevationof the motor;

Figs. 14, toil'l, inclusive are diag 'ammatie views illustrating successive periods during one cycle of operation.

The bed plate B, supports two standards B, B upon and between which the oper ative parts of the motor are mounted. Rigidly attached to what may be diirsignated for convenience of'description as thefront standard B, is a fixed journal or, formed infipecifieation of Letters Patent.

Patented July 24, 1917.

Application filed November 18 1916. Serial No. 132,112.

tegral with the stationary gear a, at its inner extremity. between the said stationary gear a, and the head (1, of the standard 13, is positioned the hub o, of the crank and gear chamber casing C. The other or rear standard 13, is formed with a bearing 6 in which is journaled the power shaft I, the inner-end of which is secured rigidly to the port head or rear'cap plate I). Between the edges of i this rear On this rigid journal a,

cap plate I), and the opposed edges of the crank and gear chamber casing C, is rigidly secured the piston cylinder or drum E,'so that said gear casing C, piston cylinder 'E, rear cap or port plate D, and. power shaft P, are all rigidly connected together and free to rotate in unison upon and between the stationary journal a, on the front standard ];:,'and the bearing on the rear standard In the piston cylinder or drum E, and between the crank and gear chamber casing C, and the port plate 1), and rigidly secured to allthree of them, is the piston and valve section G, which is formed with the piston sections 9*, 9 between the outer opposed surfaces of which are the expansion chambers 9 g.

The segmental abntments L, L are rigidly attached to a common hub Z, which is keyed to the main crankshaft h, journaled in the port plate D, the piston section G, and the center of the stationary gear a, and in axial alinement with the power shaft I, as will be seen by reference particularly to Fig. 10. The wrist pin of the crank h, of said main crank shaft 71., is connected by rod with the wrist 'pin of an auxiliary crank it, the journals In, a, of which are mounted in bearings (see Fig. 10) in the abutment section G, and in the crank and gear chamber casing C. This auxiliary crank 7t, carries rigidly attached to one of its journals In, a planetary pinion k, which meshes with the stationary gear a, and is of the valve-cam shaft m,said gearwheel m,

being twice the diameter of said driving pulicy In". There is no auxiliary crank on the opposite side of the main crank shaft h, but a planetary gear in, like unto the first named. Z'. meshes with the stationary'gear a, being mounted on a countershaft 70'',

duplicate of the first named drive pinion mental piston. sections g y in which are 30 formed in the head D, Whi

ply,.indicated by the pr g, on one side and the corresponding Wall. g g on the other side of the section E, are all coin vergent toward the oil tie main crank shaft it, forming diametrically opposed segsituated in each case an inlet valve 2", and port 2, and. an exhaust valve 5, and port e, both of said valves: in each ca opening into at common valve chamber r, formed with a port o, opening in one case into the abutincnt chamber 9 and in the other into the other abutment chamber ihe valves are of the spring puppet ty (1 are actuated by suitably tuned cams the shafts m, and

m respectively, in a manner well known in the art. The discharge po ts 6, open into the atmosphere; the inlet ports '5, i, are supplied With gas through conduits (Z, (Z, communicating with annular groove d, a groove is closed by an annular cap'platc (3, provided with a coupling pipe (Z whi h connects the gas chamber or groove cl", W a source of sup c3 in Figs. 3,

and 10, and by the pipe in Fig. 13. The

annular closure plate c is held against the edges of the annular groove or feed chamber 03, byelastic resilient pressure as. by the springs d d interposed betu 'eensaid an- 40 nular plate 61 and s itionary parts of the appaiimtus, such as b cl zet heads (5, (E in- 'dicated in Figs. 1 3, 4-, and 13, of the drawings.

The segmental ab! cents L, L", and hub d, as shown in F city and clearn as of illustration, or the seoinents n'mv be hot low as is the duplex & mtmcntlsection as shown in Fig. 5. In either case the ends of the hub Z, and of the abutment sections L,

if, as Well as their peripheral edges are grooved to contain suitable packing q, to insure a gas tight fit l'xctwcen them and the inner face of the hecdD on one side, the

,55 inner face of the abutment member E, on

the other side, and the inner side of the piston cylinder E.

The auxiliary or planetary gears 22: and 70, being only of one half the diameter of the fixed gear aQWith which they mesh Will obviously each rotate twice While making a single revolution around said stationary gear a, WhllB the gears m, and m on the valve cam shafts in and 1225 being twice the diamcterof their dri 111g pinions 7c, 1t

is likewise obvious that said valve cam shafts will be rotated only once during each revo. lution of the planetary gears m is around said stationary gear and the timing; is such that a charge of gas will be admitted to each expansion chamber g", g, exploded, and ejected therefrom during each rotation of the rotor D E, U, considered as a whole. A spark plug s, is provided for each of the alve chambers o, properly timed with relation to 'tl eration of the valve cams, etc. The dia ms Figs. 1 to 17, inclusive 'e collect-i v y four successive periods 7 pie rotation oi? the rotor shell, the arluw heads each case indicating the pen he compressed charges of od from Fig. let, to li ig'l lb rein'esents not of enpansiongtl e period between Figs. 15, and 16, that of the cjectnient oil the oducts of combustion; the period between Fl s Hi and 17, that of the induction of fresh fuel; and that between l7, and let, the period of compression;

The function of the planetary gear if, auxiliary crank it, pitman j, and main crank it, is to effect and control the intermittent action of the abutments L, L which they do by alternately holding them as related to the continuously rotating motor-shell D, E, (l, and the p. ton section G, (which are united as hereinafter stated, and hence rotate together around the of the motor} and then advancing them twice during each rotation. of: the shell.

For instance, starting with the relative position of parts shown in Fig: 14, in which the charges of gas have already been received and compressed between the abutinents ll, L Within t valve chambers '2:,, and o, the piston sections g, g, the igr' forces piston sections 7?, g over into the position shown in 15, the planetary gear 76 and connections holding the abutments L as related tothe casing, as will be understood by reference to the dotted lines in Figs 14:, and 15, by Whic' it will. be seen that this partial revolution oil? the planetary gear 23 has not altered the position of the main crankh, which it will be remembered is connected rigidly with hub Z, of said abutments L L thus enabling the abutinents to resist the expansive force so that the latter is exerted to effect the advance of. the piston sections g, and g, and hence of the shell. During the quarter rota tioo. from the positions shown in Fig. 15, to those shown in Fig. 16, the continued rota-- tion of the planetary gear is, causes its connections to pull the abutments L, L, over for half a rotation, causing the latter to expel the products of combustion from the piston chambers 9 9. During the next quarter rotation of the shell and piston sections 9 g, the continued revolution of the Plan- ,1 on and expansion of the charges etary gear 70 again holds the abutments as shown Fi l6, and 17, and as illustrated again by life dotted positions of the cranks and connection rod. As the piston sections 9', 9, re cede from the abutments and from their positions shown in Fig. 16, to those shown in ig. 17, they suck in the fresh charges of gas, which charges are compwessed when the abutinents are again advanced by the continued revolution of the planetary gear It, from the positions shown in Fig. 17, to the original positions shown in Fig. 14, from which the tracing of the cycle of rotation was begun, it being understood that the rotor acts as its own fly wheel, and that the impetus imparted thereto is evenly balanced I on diametrically opposite sides thereof.

By this means 1 obviate dead centers and attain. a smooth running rotor in which full el'ficiency is attained.-it being of course understood that the operations of the inlet and discharge valves are properly timed to effect these results. Furthermore the initial force of the explosions being exerted peripherally is applied to the best advantage, and angular frictional resistance is obviated. I have herein described my motor as driven by means of explosive gas as a source of ower, although it is obvious that by modifying the valve service other gas under pressure, as steam, may be substituted as a source of power. A

at I claim as my invention and desire to secure by Letters Patent is,

' 1. In a rotary engine of the character designated, in combination, a casing comprising a crank and gear compartment, a piston cylaround the stationary gear a,

tionary gear.

inder and a port cap plate all rigidly connected to form a rotative unit stationary gear, a planetary gearen aging therewith, an auxillary crank carried y said planeta gear, a rod connecting said auxiliary crax ik with a main crank, said main crank rigidly connected with diametrically o posed segmental abutments, diametrical y opposed pistonsections integral with the casing, a power shaft attached to said casing, and cam means actuated from said planetary gears for effecting the inlet, ex ansion and discharge of a gaseous source 0 power.

2, Ina; rotary engine of the character designated, in combination, a casing comprising a crank and gear compartment a piston cy inder and a port cap plate all rigidly connected to form a rotative unit, a stationary gear, planetary gears engaging therewith, an auxiliary crank carried by one of said planetary gears, a rod connecting said auxiliary crank with a main crank, said main crankrigidly connected with diametrically opposed abutments, said abutments, diametrically opposed piston sections'integral with ,the casing, inlet and discharge valves positioned ineach of said piston sections, valve cam shafts mounted in the latter and actuated by gearing deriving motion from said' planetary gears, and a power shaft attached to said casing in axial alinement with the abutment shaft and said sta- ELMER E. ALLEN.

Witnesses:

. Gm. WM. Miam Dono'rnr Mm'rr. 

